Decisions can be risky or riskless, depending on the outcomes of the choice. Expected Utility Theory describes risky …

Eliaz (2004) has established a "meta-theorem" for preference aggregation which implies both Arrow's Theorem (1963) and … preference aggregation is the mutual exclusiveness of Pareto optimality, individual responsiveness (preference reversal) and non …-dictatorship. Recent work on judgment aggregation has obtained important generalizations of both Arrow's Theorem (List and Pettit 2003 …

theorem and Fishburn's possibility theorem. The proof methodology is based on a model-theoretic approach to aggregation theory … aggregation theory ; variational preferences ; multiple priors preferences ; convex risk measure ; model theory ; first …This paper studies collective decision making with regard to convex risk measures: It addresses the question whether …

. -- Arrow-type preference aggregation ; judgment aggregation ; model theory ; first-order predicate logic ; filter ; ultrafilter …It is well known that the literature on judgment aggregation inherits the impossibility results from the aggregation of … preferences that it generalises. This is due to the fact that the typical judgment aggregation problem induces an ultrafilter on …

-type preference aggregation ; Judgment aggregation ; Systematicity ; Model theory ; First-order predicate logic ; Filter ; Ultrafilter …This article proves a very general version of the Kirman-Sondermann [Journal of Economic Theory, 5(2):267-277, 1972 …]. The paper first proposes a unified framework for the analysis of the relation between various aggregation problems and the …

demand, providing an approximate aggregation theorem. We present a simple method for statistical inference on the minimum …